Sperm Collection and Artificial Insemination Technology of Tibetan Sheep by Electrical Stimulation

Abstract:

Tibetan sheep have special breed characteristics, good breeding adaptability in highaltitude and severe cold areas, and the cost of breeding is lower than other types of sheep. However, in the case of natural mating, the empty pregnancy rate is high and the reproductive rate is low. In order to overcome the unfavorable factors such as timidity, difficulty in training, and difficulty in semen collection of Tibetan sheep, we use electrical stimulation to promote the passive ejaculation of rams, which greatly reduces the difficulty of semen collection and increases the number of semen collection. In the concentrated estrus season of ewes, more than 500 ewes can be mated by individual outstanding rams. At the same time, artificial insemination is carried out by introducing drugs to induce ewes to be in estrus at the same time. This has greatly improved the reproductive performance of Tibetan sheep and accelerated the process of introducing and improving Tibetan sheep in our county. This improves the economic benefits of Tibetan sheep breeding.